公司治理对上市公司审计师变更影响的实证分析

对审计师变更原因以及公司治理对审计师变更影响的国内外研究文献进行了梳理。以我国沪深A股上市公司为研究样本,综合运用统计检验和Logistic分析方法,实证检验了公司治理评价体系的6个维度、15个指标对上市公司审计师变更的影响。结果表明:公司治理对审计师变更的影响显著;其中,第一大股东持股比例、独立董事比例、董事会会议次数与审计师变更显著负相关,是否发生诉讼仲裁事项、信息披露是否充分与审计师变更显著正相关。     

Flexibility at the Margin and Labor Market Volatility in OECD Countries*

We study the business‐cycle behavior of segmented labor markets with flexibility at the margin (e.g., just affecting fixed‐term contracts). We present a matching model with temporary and permanent jobs (i) where there is a gap in the firing costs associated with these types of jobs and (ii) where there are restrictions in the creation and duration of fixed‐term contracts. We show that a labor market with ``flexibility at the margin'' increases the unemployment volatility with respect to one that is fully regulated. This analysis yields new insights into the interpretation of the recent volatility changes witnessed in the OECD area.     

美国加州财政危机对我国地方债务风险管理的启示

加利福尼亚州是美国经济最发达的州,相当于世界第八大经济体,然而近年来加州政府却挣扎在濒临破产的边缘。长期的入不敷出是导致加州财政危机的直接原因,但背后却隐藏着美国联邦财政体制、税制结构、福利模式、两党政治博弈、三权分立的行政效率等深层次的原因。加州财政危机是美国政治、经济、社会的体制矛盾的集中反映。近年我国地方政府债务规模迅速增大,高速的经济增长掩盖了大量风险。加州财政危机对治理我国地方债务风险具有重要的借鉴意义。     

工资对产业结构升级的影响——基于中国经济数据的分析

经济增长过程中伴随着产业结构的优化升级。工资不但可以通过工资差异激励劳动力从低效率产业向高效率产业流动,推动产业结构升级,而且可以通过改变消费结构和投资结构进而影响产业结构演变,并为产业结构升级储备高级人才。本文对中国改革开放以来的工资与产业结构的经济数据进行实证研究得出:工资与产业结构之间是正向的相关关系,且两者之间存在双向因果关系。因此,工资水平的提高在一定程度上促进了产业结构的优化升级。     

IT投资对我国机械制造业上市公司技术效率的影响分析

将IT投资作为投入要素和企业特征变量,基于SFA模型和DEA-Tobit模型分别构造了6个模型,以2004—2008年我国机械、设备、仪表制造业上市公司为样本,就IT投资对我国机械制造业上市公司技术效率的影响进行了实证分析。结果表明:SFA和DEA在测算技术效率方面具有较好的一致性,"生产率悖论"仍然存在;两种视角下测得的技术效率具有显著差异,且在SFA中,作为企业特征变量的IT投资的影响大于其作为生产要素的影响,这在DEA中情况正好相反;企业规模与技术效率正相关,企业资产负债率和企业年限与技术效率负相关,股权集中度与技术效率的关系不显著。     

基于偏离-份额法的河南制造业竞争力分析

制造业是地区工业的重要组成部分,也是国民经济发展的支柱.本文运用偏离-份额分析法对河南制造业的发展状况进行分析,并与全国的发展状况进行比较,从结构和竞争力两个角度分析了制造业内部问题所在,以探讨河南制造业发展的重点,并结合实际为河南制造业的健康发展提出建议.     

边际工资补贴对区域经济的影响

The main research of this paper is the regional effects of marginal wage subsidies. Some regional economic issues are discussed such as production scales, operating profits, industry distribution, and expenditure distribution across the rich and poor regions. It is proven that, marginal wage subsidies improve the employment and raise the industrial share of the poor region, but meanwhile the expenditure share in the rich region increases for marginal wage subsidies. It is also showed that, the relationship between the effectiveness of marginal wage subsidies and the level of openness to trade is ambiguous when the wage level is very high, however, if the wage level is low enough thus marginal wage subsidies can cause relatively large employment increase, marginal wage subsidies cooperating with freer trade policy would be more effective.      

Taxes and labor supply: Portugal, Europe, and the United States

I relate hours worked with taxes on consumption and labor for Portugal, France, Spain, United Kingdom and United States. From 1986 to 2001, hours per worker in Portugal decreased from 35.1 to 32.6. With the parameters for Portugal, the model predicts hours worked in 2001 with an error of only 12 min from the actual hours. Across countries, most predictions differ from the data by 1 h or less. The model is not sensible to special assumptions on the parameters. I calculate the long run effects of taxes on consumption, hours, capital and welfare for Portugal. I extend the model to discuss implications for Social Security. I discuss the steady state and the transition from a pay-as-you-go to a fully funded system.

2008年欧盟发布十个方面最新环境指数

本文呈现了与欧盟第六环境行动计划优先领域相关的最重要的十个环境指数和趋势.优先领域为:气候变化、自然与生物多样性、环境与健康、自然资源与垃圾处理.     

略论经济增长由单纯依靠投资和净出口向二者与消费协调拉动的转变

在国内持续低消费的情况下,由于政府对投资和出口的过度激励,中国长期以来形成了主要依靠投资、净出口拉动的经济增长。主要依靠投资、净出口拉动的经济增长是不可持续的。实现经济增长主要依靠投资、净出口拉动向依靠消费、投资、净出口协调拉动转变的关键：一在于提高消费,二在于改变政府对投资和出口激励的方式与手段。